old mesh data
new mesh data after using a spacer of 0,8 mm at the back of the bed
(that is about where the back liftscrew runs in the middle of the bed)
Easy job
Only two little screws to screw out.
Lift bed a little and place a spacer of desired mm height
so who wants to level the bed of a K1 Max use spacers is my advise.
You can find a video on internet somewhere how to, and also has added, a download for the spacers.